Lounge

Josep

be sure to check out dreamhost. They offer unlimited addon domains, and after the first year, which is 30 bucks with a coupon, it's about 80 bucks, so less than 10 a month. This gives you just about everyrthing you could need, from mysql, to moodle hosting (for onesies and twosies), wikis, etc...

Combine this with free things from google, flickr, etc... and you can offer a lot of cool stuff to just about anyone!

d.i.